CVE-2015-7312

Severity: medium (CVSS 4.4 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2015-11-16 · updated 2026-06-17
Weakness: CWE-362

Description

Multiple race conditions in the Advanced Union Filesystem (aufs) aufs3-mmap.patch and aufs4-mmap.patch patches for the Linux kernel 3.x and 4.x allow local users to cause a denial of service (use-after-free and BUG) or possibly gain privileges via a (1) madvise or (2) msync system call, related to mm/madvise.c and mm/msync.c.

Affected products

Canonical Ubuntu Linux: 14.04
Debian Linux: 8.0
Linux kernel: from 3.0.0 through 3.19.8; from 4.0.0 through 4.20.15

References

http://sourceforge.net/p/aufs/mailman/message/34449209/
http://www.debian.org/security/2015/dsa-3364
http://www.openwall.com/lists/oss-security/2015/09/22/10
http://www.ubuntu.com/usn/USN-2777-1
http://sourceforge.net/p/aufs/mailman/message/34449209/
http://www.debian.org/security/2015/dsa-3364
http://www.openwall.com/lists/oss-security/2015/09/22/10
http://www.ubuntu.com/usn/USN-2777-1

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